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Description/Abstract

In the future, Arctic warming and the melting of polar glaciers will be considerable, but themagnitude of both is uncertain. We used a global climate model, a dynamic ice sheet model, andpaleoclimatic data to evaluate Northern Hemisphere high-latitude warming and its impact on Arcticicefields during the Last Interglaciation. Our simulated climate matches paleoclimatic observationsof past warming, and the combination of physically based climate and ice-sheet modeling with icecoreconstraints indicate that the Greenland Ice Sheet and other circum-Arctic ice fields likelycontributed 2.2 to 3.4 meters of sea-level rise during the Last Interglaciation.